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'Declaration
<CLSCompliantAttribute(True)> <ComDefaultInterfaceAttribute(OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods)> <ComVisibleAttribute(True)> <GuidAttribute("D4F970F7-2E42-4883-996D-928390E5DA13")> <TypeConverterAttribute(System.ComponentModel.ExpandableObjectConverter)> <ValueControlAttribute("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", DefaultReadWrite=False, Export=True, PageId=10001)> <SerializableAttribute()> Public NotInheritable Class EasyDAClientHoldPeriods Inherits OpcLabs.BaseLib.Parameters Implements LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, OpcLabs.BaseLib.ComTypes._Parameters, OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods, System.ComponentModel.INotifyPropertyChanged, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable
'Usage
Dim instance As EasyDAClientHoldPeriods
[CLSCompliant(true)] [ComDefaultInterface(OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods)] [ComVisible(true)] [Guid("D4F970F7-2E42-4883-996D-928390E5DA13")] [TypeConverter(System.ComponentModel.ExpandableObjectConverter)] [ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", DefaultReadWrite=false, Export=true, PageId=10001)] [Serializable()] public sealed class EasyDAClientHoldPeriods : OpcLabs.BaseLib.Parameters, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, OpcLabs.BaseLib.ComTypes._Parameters, OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods, System.ComponentModel.INotifyPropertyChanged, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable
[CLSCompliant(true)] [ComDefaultInterface(OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods)] [ComVisible(true)] [Guid("D4F970F7-2E42-4883-996D-928390E5DA13")] [TypeConverter(System.ComponentModel.ExpandableObjectConverter)] [ValueControl("OpcLabs.BaseLib.Forms.Common.ObjectSerializationControl, OpcLabs.BaseLibForms, Version=5.72.465.1, Culture=neutral, PublicKeyToken=6faddca41dacb409", DefaultReadWrite=false, Export=true, PageId=10001)] [Serializable()] public ref class EasyDAClientHoldPeriods sealed : public OpcLabs.BaseLib.Parameters, LINQPad.ICustomMemberProvider, OpcLabs.BaseLib.ComTypes._Info, OpcLabs.BaseLib.ComTypes._Object2, OpcLabs.BaseLib.ComTypes._Parameters, OpcLabs.EasyOpc.DataAccess.Engine.ComTypes._EasyDAClientHoldPeriods, System.ComponentModel.INotifyPropertyChanged, System.ICloneable, System.Runtime.Serialization.ISerializable, System.Xml.Serialization.IXmlSerializable
// This example shows how the OPC server can quickly be disconnected after writing a value into one of its OPC items. using System; using OpcLabs.EasyOpc.DataAccess; using OpcLabs.EasyOpc.OperationModel; namespace DocExamples.DataAccess._EasyDAClientHoldPeriods { class TopicWrite { public static void Main1() { // Instantiate the client object. var client = new EasyDAClient(); client.InstanceParameters.HoldPeriods.TopicWrite = 100; // in milliseconds try { client.WriteItemValue("", "OPCLabs.KitServer.2", "Simulation.Register_I4", 12345); } catch (OpcException opcException) { Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message); } } } }
# This example shows how the OPC server can quickly be disconnected after writing a value into one of its OPC items. # The QuickOPC package is needed. Install it using "pip install opclabs_quickopc". import opclabs_quickopc # Import .NET namespaces. from OpcLabs.EasyOpc.DataAccess import * from OpcLabs.EasyOpc.OperationModel import * # Instantiate the client object. client = EasyDAClient() client.InstanceParameters.HoldPeriods.TopicWrite = 100 # in milliseconds # Perform the operation try: IEasyDAClientExtension.WriteItemValue(client, '', 'OPCLabs.KitServer.2', 'Simulation.Register_I4', 12345) except OpcException as opcException: print('*** Failure: ' + opcException.GetBaseException().Message) exit() print('Finished.')
' This example shows how the OPC server can quickly be disconnected after writing a value into one of its OPC items. Imports OpcLabs.EasyOpc.DataAccess Imports OpcLabs.EasyOpc.OperationModel Namespace DataAccess._EasyDAClientHoldPeriods Friend Class TopicWrite Public Shared Sub Main1() Dim client = New EasyDAClient() client.InstanceParameters.HoldPeriods.TopicWrite = 100 ' in milliseconds Try client.WriteItemValue("", "OPCLabs.KitServer.2", "Simulation.Register_I4", 12345) Catch opcException As OpcException Console.WriteLine("*** Failure: {0}", opcException.GetBaseException().Message) End Try End Sub End Class End Namespace
System.Object
OpcLabs.BaseLib.Object2
OpcLabs.BaseLib.Info
OpcLabs.BaseLib.Parameters
OpcLabs.EasyOpc.DataAccess.Engine.EasyDAClientHoldPeriods